Dobroczyński, M. (1998). Poland, its surroundings and the European Union. Wydawnictwo Adam Marszałek.
Citazione stile Chigago Style (17a edizione)Dobroczyński, Michał. Poland, Its Surroundings and the European Union. Toruń: Wydawnictwo Adam Marszałek, 1998.
Citatione MLA (9a ed.)Dobroczyński, Michał. Poland, Its Surroundings and the European Union. Wydawnictwo Adam Marszałek, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.